Sonic Angel Knight
I don't know if this sounds silly to you, but I just wonder. Many of the games that are based on anime/manga seem to be published by Namco Bandai. If you think about perhaps any single popular one of these anime shows that have a game, the first name that comes to mind is that company. Besides Pokemon which is Nintendo/Gamefreak/Pokemon Company or maybe Attack On Titan by Omega Force/Koei Tecmo, I can't really think of much else.